Oiler.



UNITED sTATEs PATnNT orrion.

HALVER H. NERBOVIG, JR., OF SHELDON, IOWA. i

OILER.

Specification of Letters Patent.`

Patented Dec. 12, 1905*.

Application filed March 6, 1905. Serial No. 248.613.

To all whom, t may concern:

Be it known that I, HALVER- H. N ERBovIG, Jr., a citizen of the United States, residing at Sheldon, in the county of OBrien and State of Iowa, have invented certain new and useful Improvements in Oilers; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in Oilers, and more particularly to one designed especially for oiling watches and the like.

The object of my invention is to provide a simple, convenient, and efiioient oiler of this character in which the oil will be well preserved and its feed readily regulated.

With the above and other objects in view the invention consists of certain novel features of construction, combination, and arrangement of parts, as will be hereinafter more fully described, and particularly pointed out in the appended claims.

In the accompanying drawings, Figure 1 is a longitudinal sectional view through an oiler constructed in accordance with my invention, the same being shown in its closedposition. Fig. 2 is a similar sectional view through the same, showing the oiler in its closed position and Fig. 3 is a detail view of the rod or stem for the air-inlet valve.

Referring to the drawings by numeral, 1 denotes the body of the oiler, which is in the form of a cylindrical barrel, made, preferably, of metal, hard rubber, Celluloid, glass, or the like. This body or barrel forms a reservoir or container for the oil, and e'ach of its ends is internally serew-threaded, as at2, to receive the eXternally-screw-threaded inner ends of heads 3 and 4, which are adapted to close said body. The head or closure 3 is tapered or cone-shaped, as at 5, and terminates in a fine tubular point 6, through which the oil within the barrel or body is discharged. The head or closure 4 is in the form of a solid plug, which has eXternally-screw-threaded outer ends 7 and 8, a centrally-disposed annular flange 9, and a longitudinally-extending central bore or opening 10, which has at one of its ends a screw-threaded portion 11. In the inner portion of the bore or opening 10 is secured one end ofan air or vent tube 12, which extends longitudinally into the body or barrel 1 and is disposed concentrically with the same. Adjacent to the inner end 4of this tube 12 is an air vent or hole 13, and

upon the eXtreme inner end of said tube is a needle-valve 14, which coacts with the tapered end 5 and the point 6 of the dischargehead 3. This needle-valve is operated by screwing the threads 7 of the head 4 into andl secured the internally-screw-threaded end of` an air barrel or cylinder 15, which forms the casing of apumping device 16, by means of which air is forced through the tube 12 and into the oil reservoir or barrel 1 in order to eXpel the oil therefrom. rIhis device 16 comprises a piston 17, made of rubber, felt, or other suitable material and secured upon the inner end of a rod 1S, which is slidably mounted in the outer end of the casing or cylinder l5. This piston-rod 18 is hollow, as shown, to receive a rod or stem 19, which has at its outer end a milled operating-head 2O and at its in. er end a screw-threaded portion 21, which is adapted to be engaged with the threads 11 in the head 4 for the purpose of closing the air-vent tube 12. 'Ihe screwthreaded end 21 of this rod forms a valve which when in its closed position, as shown in Fig. 1, prevents the entrance of air through the tube 12, and hence the escape of oil from the device, and which when in its open position-that is, removed, as shown in Fig. 2-` permits the entrance of air through the opening in the piston-rod and the -tube 12 into the oil barrel or reservoir 1, as shown. In order to hold the piston 17 normally in the outer end of the casing or cylinder 15, I provide within the latter, between said piston and the head 4, a coil-spring 22. IWhen the device is not in use, the head 3 is adapted to re.

ceive a cylindrical cap 23, which has at its inner end a cushion 24, of soft rubber or similar material, to protect the point 6 of the device.

The operation of the oiler is as follows: When it is desired to use the same, the cap 23 is removed and the threaded end 21 of the rod 19 is unscrewed from the threads 11 in the head 4 and removed from the piston-rod 18', as shown in Fig. 2. By holding the device in an upright positionoil will fiow by gravity from the discharge point or tube 6 after the needle-valve 14 has been unseated by screwing the head 4 to the position shown in said figure. When it is desired to in- IOO IIO

crease the flow or feed of the oil, the operator or user places his linger over the opening in the piston-rod 18 and forces the latter inwardly against the tension of the spring 22, thereby compressing the air within the casing or cylinder 15 and forcing it through the tube 12-into the oil reservoir or barrel l in order to cause the oil to be expelled from the discharge point or tube 6, Upon releasing the piston-rod 18 the spring 20 will restore the piston to the position shown in Fig. 2.

While l have shown and described the preferred embodiment of my invention7 it will be understood that I do not wish to be limited to the precise construction herein set forth, since various changes in the form, proportion, and the minor details of construction may be resorted to without departing Jfrom the principle or sacrificing any of the advantages of this invention.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. An oiler comprisin an oil reservoir or container having an oilischarge and an airinletfornied with a screw-threaded portion, an air-casing surrounding said air-inlet opening, a piston in said casing, a hollow pistonrod upon said piston and extending through said casing, a spring in said casing for actuating said piston, and a stem or rod extendin through said hollow piston-rod and Jforme with a screw-threaded portion to engage the screw-threads of said air-inlet opening, substantially as described.

2. An oiler comprising a reservoir or container havin(y a valve-opening at one end, an adjustable element in the other end of said reservoir, a needle-valve carried by said element and coacting with said opening, and means for controlling the inlet of air into said reservoir, substantially as described.

3. An oiler comprising a reservoir or container having a valve-opening at one end, an adjustable element in the other end of said reservoir, 'formed' with an air-inlet, a needlevalve carried by said element and coacting with said valve-opening, and a screw-closure for said air-inlet.

4. All oiler comprising a reservoir or container having a valve-opening at one end, an air-vent tube adjustably mounted in the other end of said reservoir and formed adj acent to its inner end with a vent-opening, a needle-valve upon the inner end of said tube and adapted to coact with said valve-opening, and means upon said reservoir for forcing air into said vent-tube, substantially as described.

5. An oiler comprising a reservoir or container having a tapered apertured end Jforming a valve-seat, an adjustable head screwed into the other end of said reservoir and formed with a screw-threaded opening and an airvent tube secured in said head in alinement with said screw-threaded opening and having adjacent to its inner end an air-vent opening, a needle-valve upon the inner end of said tube and coacting with said valve-seat, a casing upon said head, a spring-actuated piston in said casing, a tubular piston-rod attached to said piston and slidably mounted in said casing, and a rod extending through said hollow piston-rod and formed with a screw-threaded inner end adapted to engage the screw-threads in said head, for the purpose of closing said air-vent tube, substantially as described.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

Witnesses:

E. E. SPRINGER, E. B. MYERS. 

